Tone-arm for talking-machines.



F. MALUCSAY. TONE ARM FOR TALKING MACHINES.

APPLICATION FILED ,FEB. l1. I916- Patented Am. 10, 1918.

Invntpr -:6i0 hihexql)binet. Through the support exmmux MALOGSAY, 01

TONE-43M FOR mAxixme-meemnes.

* 770 all whmnrit may some m iB knlwln ithut 1, FRANK M noosAY, a U n 7, ed States; residing gin t he 10mg, county of Bronx, city ahd Eta-t Uf'f'N ew' York,lm-ve ir vented; a per- 1P valley iheqmo ved stylus will ,engnge =w1th the record groove oise section- 0111M line -'-5of 2, and I the ab'ove vi-ews=1i-ke parts i1 e11 eregde-s gnatetl by smnlar referme.

a V natable eomparhnent of a talking ma- Specification of Letters Patent.

and be sloeked in such position.

Patented Aug. 20,1918;

5 Application-filed February 11, 1916. Serial No. 77 690.

lends a shaft 2 from a suitable motor (not shown). The shaft 2 Carries a turmteble 3 I on which is supported akdisk record 3'.

Atone Side ofthe turn-lame 3 and usually in one-corner of file cabinet is a co1'1ar'4 which forms the upper extensions of a horn (not; shown). In the iower end of the collar is a notch 7. Mountedwithini110 collar 1 is a sleeve 5. "The'sleere .is prorideci n1: ire upthalmtch 6, for a purpose to he ribed.

Ixlioosely mounted in the upper pmTh-Df the o0 er e-hoilow tone-arm 8. Thife tone-nun is oi the usual stepdown variety and carries at its iree end" a reproduce); 9. the tone-arm which enter; 'tlie collar is gredueed indir meter' mid car es" 11' ring ,10; .the exterior surface of wvhioh is curved mid forms av ,zone of a sphere The oenterofivhieh at trhe center of theyreduced tubular? pm tion of the tone-arm. At dieinetrioall yfop posite sides of the ring is zrbeyonetljoint;

The end of slob l1 and engaging the slot at dia gl ietrioally opposite sides (if-the extension offthe to'liearm is .11 trunnion "The lower extremity ofv the tone-arm is provided with :1 Wedge shaped 'fihger 13, ,wi'lieh engages with a, Wedgeshapedfi-mck'l-i on .2 lever .15 whi h is pirofed' .at 161m the under side of the support 1. The 'raek M is rovided with twova'n 'uler surfaces. WVhen v a: i

" the finger engages the iilfllillfid sunfae 'to the left as In F g. 2 the tonehrm 1s"1oe ked V inoperative posit-ion as rega rdsiythe situiltion relatively to the. plane ofkthelrecord end whenihe finger engages the right hand side ofthe track :is in 'Fig. 3 bhetoifiegarmiwill be looked in position ehoveilie t-urnet h'ble and ithe record may be moved. Beyondflie pivot 16'21 spring'l? is employed toEhold'fiu; tree 14; in engagemen i; v with the finger -13,

In Fig. 6 is shown a modifieetionwherein is provided aball bee ring for the i top (karm- The tgun ions 12 \proj get from a ,i v i Trough I gle-sloe,

NEW YORK, N. 'Y., ASSIGNOR TO SONORA PIE-ION'CVGrlEiAPB: GORPO- RA-EEION, A CORBO-HATION 0]? NEW YORK.

tion opposite to that shown in broken lines balls. The ring 21 is in intimate en agement with the collar l and detains the alls in place.

The tone-arm is pivoted by the engagement of the trunnions with the horizontal extensions of the angle slots, the collar 5 may rotate in a horizontal plane on the balls, and at the same time permits the tone-arm to pivot. relatively to the collar.

The operation of my improved tone-arm is as follows:

With the arm in the position shown in full lines in Figs. 1 and 2, the stylus of the reproducer is free to travel across the record surface ofthe disk from the edge to the center or vice versa. During that travel the tone-arm, owing to the length of the horizontal slot of the bayonet joint, is locked against removal from the collar, and locked in position parallel to the record in which the stylus is in engagement with the recor groove by theengagement of the finger 1- with the outer face of the track 14. \Vhen it. is desired to remove the disk from the turn-table, the tone-arm is swung upward onthe trunnions until the finger 13 has depressed the lever 15, and become seated on the rear face of the track 14. The tone-arm will now be locked in the position Having now described my invention, what I claim as new and desire to secure by Let ters Patent, is as follows:

1, In a talking machine, having a tone arm, and a spherical surface thereon, diametrically dis'posedtrunnions on the spherical surface, a collar surrounding the spherical surface, there being openings in the collar to receive the trunnions, a, ball race in the collar, and balls therein, wring, sur rounding the collar and supporting the balls, a second ring engaging the balls, there being angle slots in the last mentioned ring for engagement with the trunnions, and a support for the rings.

2. In a talking machine, the combination with a tone-arm, a wedge shaped finger at the lower extremity of the tone-arm, and a. collar, the tone-arm engaging within the collar, a latch below and secured to the motor board and means for supporting the same, said latch having a double faced, areshaped track, said track engagin the finger to lock the tone-arm in any one o a plurality of positions.

' with a tonesarm, and a spherical surface on shown in Fig. 3. The notch 6 in the sleeve .5 will permit the rear portion of the tonearm 8 to swing down below the top of the collar 4, and the spherical surface of the ring 10 will permit the swinging of the tonearm 8 while still making a close fit with the -bore of the sleeve 5, and prevent escape of the sound.

After the tone-arm has been raised it may be swung laterally to the position shown in broken lines in Fig. 1, so as to be clear of the turn-table and facilitate the removal of the record disk. While in this position the arm is locked to the sleevei1 bgl this engagelar, it swung tofa' posi:

in Fig. -1, until the trunniofis 12 come under the vertical grooves in the bayonet joint when the tone-arm may-be raised from the collar.

In accordance with the provisions of the.

patent-statutes, I have described the principle of my invention, together with the ap par-fetus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the apparatus shown is merely illustrative, and that the inven tion may be carried out in other ways,

. e em ve-th onethe tone-arm, of a collar, a support for the same, there being an angle slot in the collar, a trunnion on the tone-arm engaging the slot, whereby the tone-arm may rotate one plane parallel to the axis of the collar, a

finger on the lower extremity of the tonearm, of a spring actuated lever, a support for the lever, said lever having a track engaging either side of the finger for locking the tone-arm in a raised or lowered position, said head being are shaped to permit v 3. In a talking machine, the combination movement of the tone-arm, while locked, in

a horizontal plane.

4. In a talking machine, the combination with a tone-arm capable of vertical and horiboard,'said lever having an elongated, areshaped track engaging either side of the finger for locking the tone-arm in a raised or lowered position, irrespective of the horizontal position of the tone-arm.

This specification signed and witnessed.

this 5th day of February, 1916.

. Y FRANK MALOCSAY. Witnesses: I

J OHN- L. Lo'rson, JAooB SCHEGHTE'R. 

